Question 174459
The easiest way to figure this out is to:
1. get a large bucket, say a 5 gallon bucket (larger the better)
2. turn on the hose full blast and time how long it takes to fill the bucket
3. from the above you can get a fairly accurate "gallons per minute" rate of the volume of water from your garden hose
4. finally, time how long it takes to raise the pool level
5. multiply the time calculated at step 4 by the rate calculated at step 3